cometadata/datacite-affiliations-matched-ror-ids-datacite-enrichment-format

DataCite Author Affiliations Matched to ROR IDs - DataCite Enrichment Format

This dataset contains 20,512,320 enrichment records mapping author affiliation strings from DataCite metadata to Research Organization Registry (ROR) identifiers. It covers 5,812,774 unique DOIs from the DataCite Public Data File.

Each record is formatted as a DataCite enrichment input record, designed for use with the DataCite enrichment pipeline. Records use the updateChild action on the creators field, providing a per-creator originalValue/enrichedValue pair that adds ROR identifiers to existing affiliation strings.

Record Structure

Field	Description
doi	The DOI of the DataCite record
contributors	Provenance metadata identifying the producer of the enrichment
resources	Related resources (source dataset)
field	"creators" - the DataCite metadata field being enriched
action	"updateChild" - the enrichment action type
originalValue	The creator object in its pre-enrichment state, including name fields (name, nameType, givenName, familyName) and the original affiliation array
enrichedValue	The creator object with ROR identifiers added to matched affiliations (affiliationIdentifier, affiliationIdentifierScheme, schemeUri)

Example Record

{
  "doi": "10.5281/zenodo.8099012",
  "contributors": [
    {
      "name": "COMET",
      "nameType": "Organizational",
      "contributorType": "Producer"
    }
  ],
  "resources": [
    {
      "relatedIdentifier": "https://huggingface.co/datasets/cometadata/datacite-affiliations-matched-ror-ids-datacite-enrichment-format",
      "relatedIdentifierType": "URL",
      "relationType": "IsDerivedFrom",
      "resourceTypeGeneral": "Dataset"
    }
  ],
  "field": "creators",
  "action": "updateChild",
  "originalValue": {
    "affiliation": [
      {
        "name": "Purple Mountain Observatory, Chinese Academy of Sciences"
      }
    ],
    "familyName": "Hsu",
    "givenName": "Weibiao",
    "name": "Hsu, Weibiao"
  },
  "enrichedValue": {
    "affiliation": [
      {
        "affiliationIdentifier": "https://ror.org/034t30j35",
        "affiliationIdentifierScheme": "ROR",
        "name": "Purple Mountain Observatory, Chinese Academy of Sciences",
        "schemeUri": "https://ror.org"
      }
    ],
    "familyName": "Hsu",
    "givenName": "Weibiao",
    "name": "Hsu, Weibiao"
  }
}

Methodology

match-datacite-affiliations-to-ror-ids was used to extract affiliations from the DataCite Public Data File, match them to ROR IDs, and reconcile the results into enrichment records.

1. Unique affiliation strings were extracted from the DataCite Public Data File
2. Each affiliation string was matched to a ROR ID using the single search matching strategy in the ROR API, with v2.3 of the ROR data
3. Matched ROR IDs were reconciled back to individual DOI/author/affiliation records
4. Only creators with at least one successful ROR match are included
5. Affiliations that already had ROR IDs assigned in the source DataCite metadata were excluded from matching

Statistics

Metric	Value
Total enrichment records	20,512,320
Unique DOIs	5,812,774
Unique affiliation strings extracted	1,444,079
Affiliation strings matched to ROR IDs	763,766
ROR data release	v2.3 (2026-02-24)

File Format

JSONL (JSON Lines), one enrichment record per line.

Source Code

• match-datacite-affiliations-to-ror-ids - Extract affiliations, match to ROR IDs, and reconcile into enrichment records
• datacite-enrichment - DataCite enrichment pipeline

Related Datasets

• datacite-affiliations-matched-ror-ids - Source matching data in tabular format